Walking Fingerprinting Using Wrist Accelerometry during Activities of Daily Living in NHANES

Lily Koffman

Department of Biostatistics, Johns Hopkins School of Public Health

Introduction: accelerometry data

Introduction: accelerometry data

Introduction: big accelerometry data

Can we identify someone from their walking pattern measured by a wrist-worn accelerometer in big, free-living datasets?

Problem setup

Problem setup

Problem setup

Big picture method: time series to scalar predictors

Fingerprints summarize predictors for a given lag and are different across individuals

Fingerprints summarize predictors for a given lag and are different across individuals

Ready to fit models

Thank you!



References

tinyurl.com/koff-enar25